Foxbody (A-C) R134a Conversion

[dee]

I think if everything is working right, the low pressure switch will keep vent air at about 50 degrees. That is after you have cooled down a heat soaked car. I have bypassed the low pressure switch, and in the shade on a normal day I can get 38 degree air. Of course that is with out the low pressure switch cycling the compressor.

Bypassing the low pressure switch can cause damage to the system. If the evaporator is allowed to freeze up oil won't be brought back to the compressor which will cause catastrophic failure. The best way to go about that is get an adjustable low pressure switch and adjust down to around 21lbs-22lbs ( not completely sure about those readings my notes on that are at the shop) cut off pressure.